Ключевые слова: adventure, arid, background, california, climate, colorful, desert, drought, dry, dune, dunes, ecology, ecosystem, environment, erosion, extreme, footprint, global, gobi, heat, hot, mongolia, morocco, namib, namibia, national park, nature, nevada, new mexico, nobody, open space, orange, outdoor, peaceful, recreation, rough, sand, survival, thirst, tourism, travel, united states, unspoiled, unusual, usa, warming, waterless, wilderness,